Effect of sample geometry on the macroscopic shear deformation of the titanium alloy Ti-10V-2Fe-3Al subjected to quasi-static and dynamic compression-shear loading (bibtex)

by S. Winter, M. Scholze, M. F.-X. Wagner

@Article{Winter2021b,
  author    = {Winter, S. and Scholze, M. and Wagner, M. F.-X.},
  journal   = {{IOP} Conference Series: Materials Science and Engineering},
  title     = {Effect of sample geometry on the macroscopic shear deformation of the titanium alloy Ti-10V-2Fe-3Al subjected to quasi-static and dynamic compression-shear loading},
  year      = {2021},
  month     = may,
  number    = {1},
  pages     = {012014},
  volume    = {1147},
  abstract  = {We investigate the evolution of shear bands in a Ti-10V-3Fe-2Al alloy with three different initial microstructures: solution-annealed β-titanium, β-titanium with primary α-phase precipitates as well as a condition with primary and secondary α-phase precipitates. Quasi-static and dynamic testing of compression-shear specimens with strain rates of 10\textsuperscript{-3} s\textsuperscript{-1} and 10\textsuperscript{2} s\textsuperscript{-1} is performed at room temperature. The influence of two different sample geometries on the macroscopic shearing tendency is investigated: samples with a cylindrical cross section and samples with a square cross section. The results of digital image correlation and the nominal stress-strain behavior under quasi-static and dynamic loading indicate a stronger localization tendency of the aged conditions with additional α-phase precipitates compared to the solution-annealed pure β-condition. Our results also demonstrate that compression-shear testing with samples with a square cross-section reduces facet loss, increases the resolution even at high strain rates and therefore allows to analyze strain distributions during shear band formation and propagation with higher accuracy.},
  doi       = {10.1088/1757-899x/1147/1/012014},
  publisher = {{IOP} Publishing},
}